Friction draft-rigging for railway-cars.



No. 849,562. PATENTBD APR. 9, 1907.

J. F. OGONNOR. FRICTION DRAFT RIGGING FOR RAILWAY CARS.

APPLICATION FILED DBO. 20. 1906.

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Nol 849,562. PATENTRD APR. 9, 1907. J. F. ocoNNoR.

PRIGTION DRAFT RIGGING POR RAILWAY GARS.

APPLICATION FILED DEO. 20. 1906. 2 SHEETS-SHBBT 2.

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JOHN I?. OCON NOR, OF CHICAGO, ILLINOIS, ASSIGNOR TO W. H. MINER COMPANY, Oli- OIIIOI'XGO, ILLINOIS, .A CORPORATION OF ILLINOIS.

FRC'TION DFAFTHFHGGING FOR RILWYOARS.

To .fl/U whom it 71mg/ cm2/(feria.- l

Be, it known that I, Join; F. OILloNNon, a citizen of the United States, residing in (Thicago, in the county of (loolf. and State of Illinois, have invented a new and proveineiit in Friction Draft-Rigging for Railway-Cars, of which the following' a .specification My invention relates to friction draftrigging for railway-ca rs.

n friction iilraftfrigging heretofore in use diiliculty is experienced in the pra" Iical operation, owingr to the tendency "ol: the wedgingr, spreading, or load distributing mechanism to stick and be irregular and imcertain in action and sudden and violent in movement when motion once begins, thus greatly reducingl the effective friction-Lil cushioning power or absorption ol work by the l'riction-surfaces.

The object of my invention is to providev an ollicient means l'or overcoming' this dillicnltv or objection and of enablingr the l`rir-` tion devices to uniformly and reliably exert a positive predcierniined l'rietioiial resistance or cn.-.-hioning ellcet without interfering with the strength7 iluinbilitv, and safely ol -the draft-rigging as a whole or materially increasing the number ol' eating the construction.

My invention` consists in the means I employ to practically accomplish this object or resnlt---that is to say, it consists, in connection with the draw-bar, draft-rigging spring, followers, yand stops, of a. longitudinallyn'iovablc friction device or shell,r of cool'icrating frietion-blocks having their inclined Wedging oi spreader meeting 'faces provided with steps or oll'sets, and a, pluralityY of antifriction rollers linterposed between the spreader-faces ol the frictioinblmfks and held in position'by the shoulders connectin;r the adjacent steps or oll'sot portions of the spreader-faces.

My invention further consists in the novel construction of parts and devices and in the novel coinbinations of parts and devices herein shown and described, and more specii ieally pointed ont .in the claims.

n the accompanyingr drawings, forniiirgr a part of this specification, Figure l is a side elevation, partly in vertical longitudinal section, of a friction draft-rigging embodying inyinveiition. Fig. 2 is a plan view, partly paris or compliuseful Iin- Specification of Letters Patent. Application filed December 20. 1906. Serial No.

Patented April 9, 1907.

.in horizontal section. Fig. 3 is a. cross-seetion on line 3 3 of Fig. l. Fig'. 4 is a vertical perspective view ot one ot face, and Fig. 5 is a detail perspective View oi one ol'tlie antil'riction devices'or rolleis.

In the drawings, A represents Ithat portion of the car-frame to which the draft-rigging.

is applied, the saine beineT in the example illustrated in the drawings nietal center sills.

.B is the draw-barg B, its yoke; O, the longilzniiliiniily-arraneed `direct-actingr draft-rig xeine' spring; D D. the .stops securelyT aib chored to the enrel'rammvork, preferably by rivets d, and F l"l are the 'front and rear followers which alternately engage the front a nd ie:ir"stops and cooperate with the drawbar and i is volte and. the spring C. A smaller spring c prifferaldy nests within the priingr (f.

Il? is the longitudinally-movable friction device, preferablya c vlindrie' shell and preferably made separate from the rear follower F". "lhe friction device or shell I"`-"has an inside cylindric friction-face f parallel t0 the direction of the movement of the drawbar and pielferabl.;Y Vis closed at one end b a llanged cup or phigf and open at the ot ier end l'or convenient insertion and removal of the springs C c. The longitiidinally-inovable cvlindric friction-sliell F2 is further provided at its lower portion with a saddle or support if, havingr laterally-projectingr guides 'or llanges f2 to engage the removable bottom plate or guide l lhwhicli is reiniivably secured iii .place by bolts It, so that by removingr this guide Il the draft-rigging may be readily reinoved and replaced.

(l (l are coi'perating longitudinally-niovable fiiclioii-blocl s, havingr c vlindric frictionfaces y in sliding lirietional engagement with and parallel to the coo erating' inside friction-facef of the friction-s i011 FL. These (-,o'niicrating friction-blocks (l G are each provided with inclined or wedging Spreaderfaces g g', each l'urnisl'ied willi ste )s or offset portions q2 g2, connected by curved shoulders g (73. The cooperating friction-blocks GiA G also have. square or'rigrlit-angle or ilat faces g4 their opposite ends, one affording a bearing for the front follower and the other a bearing for the springs C c.

K K are antifrietion devices, preferably the rictioii-blocks havinva ste ed or oll'set inclined ors vreader s PP IOO

rollers, inserted between the inclined or wedging meet-ing; stepped spreader-faces of the'triction-olr :lis G G und maintained in position by the cooperating.shoulders g und the steps [jl of the spreader-feces g oi the Vhrictionblocks. @ne ot the.nictior-rollers l. is located on each side oi' the longitudinal centi-ol line of the drew-bar, or one above and the other below the centi el line of thrust, so that 1o the interposed friction-rollers will not pros 5 The stepped, inclined,

zo also suoli size or diameter as Will enable the rollers to act eilieiently es antii'riction devices, `while et the seine time the meeting surrender-'feces oi the irictiombloclis ore retained in juxtaposition to eecll other, es is required not only 'for strength, soiety, and security tor the draft-rigging es :i uf'hole, hut also on account of the limited room or space which ordinarily can he occupied 4by the fric tion-blocks and spring in e cl.i'er`trigging, and especially in droit-rigging of e kind to which roy invention relates, Where the spring is longitudinally arranged in 'the line et the draw-'ber and of the friction-blocks, the spring itself will be direct-eeting and ex ert o cushioning elifect in addition to and's'uppleinenting' thetprcduced Vhy' the friction devices. The friction-shell F2 is preierably ina-de et iron or steel pipe, such es used for ges-inains or waterfpipe, hy cutting, the saine into suitable lengths'.I The shell is fixed to its saddle' or support F preferably by rivets j, some 'oi which also preferably extend i through the ilsnge oi the plug 4 f The frontend rear stops il D are prefer- Jolyv integral, together forming e side plete or stop-casting D2, which is oleo preferably provided with supplemental stops d d to limit the compression` oi" the springs and the longitudinal movement oi" the friction shell F3.

To prevent the friction-blocks from turningin the iriction-sheli F2, wh' cli is preferably circuler in cross-section, I provide one oi the friction-blocks, preferably the lower one, with a longitudinal guide slot or recess g und the interior of the friction-shell l?? with ay proicction or `ejuidef4, the some being pretorobly the heed ol a rivetf, which extends through the friction-shell im `and its saddle or support ii.

i. clziinr-e l. ln elriction droit-rigging, the combinetion with the driuv-lmr nud its yoke, oi' sidel .pistes iurnishcl with stops, Vl'ollmve'rs, s. longitudinelly-niovolilc lrictiomsheli, e directso that )ver ging spreader-trices iurnisiiell i eutiiriction roller between rslity ci' entiiriction-rollers interposed lne tween the inclined or spreader feces of the irictiowbloelis, ond held in position vby the shoulders com; Wiring seid steps or offsets, o

saddle ppoi lor seid triction-shell, sint e reinovelle botroin guide or plete upon which seid saddle reeiprocetes, substantially as specified.

2. in e friction draft-rigging, the combinetion with'the draw-oar and its yoke, of side plot-es turnished with stops, followers, s longitudinelly-movable cylindric friction-shell, s direct-acting longitudinellyarranged spring Within said shell, slidingI lrietionblocks Within. said shell linviig is. lined or or ol'l'sets, e plurality of ontilrietionrollers interposed between the inclined or spreader trices of the irictionblocks, ondlield in position by the shoulders connecting seid steps or olllsets, s saddle or support for said friction-shell, e removable loot/toni `guide or plate upon 'which seid saddle reciproeetes` said Vfriction-shell ond one of said friction-*blocks having interengoging guide devices ro prevent the friction-block from turning` in the shell, substantially es specified.

3. ln s friction droit-rigging, the conihinzb tion with s lcngitudinally-arrzinge(l spring, stops end Followers and the 'drewdmr und its yoke, oi n liingitudinelly-movable oyliiidrirfriction-shell letiveen the followers and hirvingsy :in internal friction-fe ce, slidin/fy l'riction blocks Within said shell having external frictioibieces enge-ging the intr-mel tri' tion-fece of Said friction-shed. and provided with Wedgil jg or inclined meeting faces, and an seid triction- ICO hlocksdisving e, rolling action of both on seid blocks, substantially es speciled. 'l 4. ln a friction droit-rigging, the combina,- tion with a longitudinelly-arranged spring, stops end followers and the dreist-har enel .its yoke, ot longitudinelly-moveblel cylindric friction-shell between the followers end heving en internal friction-fece, sliding frictionblocks within seid shell having external fric tion-feces engaging the internal friction-fece ol' seid friction-shelhond provided with Wedging or inclined meeting tacos, and an antifriction-rollerleeti 'een seid 'fiction-blocks, e. seddle supporting seid friction-shell, and s bottoni plete or guide upon which said saddle reciprocetes, substantially es speciiied.

5. 'in e friction draft-rigging, the combination with e longitudinally-zirranged spring,l

stops and followers and thedrsW-.ber and its yoke, oi e longl iulinfilly-movehle cylindric tion-faces engaginff the internal friction-face of said frictionbell, and provided with Wedging or inclined meeting faces, an antifriction-roller between said friction-blocks', and interengaging guide devices on said friction-shell and on one of said friction-blocks to prevent the frictionblocks from turning, substantially as specified.

6. In a friction draft-rigging, the combination with a longitu(finally-arranged spring, stops and followers and the draw-bar and its yoke, of a longitudinally-inovable cylindric friction-shell between the followers and having an internal friction-f ace, sliding frictionblocks within said shell having external friction-faces engaging the internal friction-face of said friction-shell, 'and provided with wedging or inclined meeting faces, an antifrietion-roller between said friction-blocks, a saddle supporting said friction-shell, a bottom plate or guide upon which said saddle reciprocates, and means for preventing the friction-'blocks from turning in the frictiontion with the draw-bar and shell, substantially as specified.

n a friction draf t-rigging, the combination with a longitudinally-arranged spring,

stops and followers and the draw-bar'aud its yoke, of a longitudinally-iuovable cylindric friction-shell between the followers andhaving an internal friction-face, sliding frictionblocks within said shell having external frietion-faces engaging theinternal friction-face of said friction-shell, provided with wedg'ing or inclined meeting faces', an antifrictionroller between said friction-blocks, a saddle supporting said friction-shell. and abottom Aor guide upon which said saddle reciprocates, said saddle for the friction-shell having lateral guides or flanges 'engaging said bottom vplate or guide, substantially as specified.

8. n a friction draft-rigging, the combinaits yoke, a directacting.longitudinally-arranged spring, stops and followers, of a longitudinally-movable l friction-shell, coperating sliding frictionsteps or offsets and shoulders connecting the steps or offsets, and a plurality of antifrieytion-rollers interposed between the inclined 'or spreader faces of the friction-blocks and held in position by said shoulders connecting said steps or offsets, substantially as specified. 9. In a friction draft-rigging, the combination with the draw-bar and its yoke, a directacting.longitudinally-arranged spring, stops and followers, of a longitudinally-1movable friction-shell, cooperating sliding friction- ,blocks within the shell and having inclined or wedging spreader-faces furnished with steps or offsets and shoulders connecting the steps or offsets, and a pair of antifrictionrollers interposed between the inclined or spreader faces of the friction-blocks and held in position by said shoulders connecting said steps or offsets, one of said shoulders being above and the other below the cent-ral longitudinal line of the draw-bar or li'ne of thrust, I substantially 'as specified.

10. ln a friction draft-rigging, the combination with the draw-bar, stops and followers, of a longitudinally-movable frictionshell having an inside curved friction-face, cooperating friction-blocks having exterior curved friction-hices in sliding frictional engagement with the inside friction-face of said shell. and inclined or wedging meeting faces tion-rollers between said friction-blocks, said i friction-blocks having shoulders for holdingthe rollers in position, substantially as specified.

JouN 1v. o'eoNNoRf Vitiiesses:

ll. M. MUNDAY, EnMUNn Anooen'.

furnished with steps or offsets and antifric- 

